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Current system
18052-3921
HDS 2549
W CrA


Nearby doubles
12' : 18060-3928
WG 223

17' : 18050-3904
RST2024

40' : 18022-3939
WG 221

51' : 18037-4008
TDS 901

58' : 18054-3823
HDS2550

60' : 18043-4019
WG 222

64' : 18000-3904
B 925

66' : 18093-4006
I 1351

66' : 18090-4009
WG 224

67' : 18089-4012
TDT 709

68' : 18010-4007
WG 220

72' : 18045-3810
VVV 50

76' : 17594-3955
TDT 614

77' : 18034-3807
TDS 899

78' : 18097-3824
TVB 300

78' : 18087-3814
SWR 237

78' : 17591-3850
I 1015

79' : 17599-4010
WFC 283

80' : 17599-3830
WFC 203

80' : 18051-4040
CPO 571

81' : 18122-3921
BU 759AB

85' : 18044-4044
RST2023

85' : 18010-3811
B 2426

86' : 17580-3908
I 1013

86' : 17594-4014
TDT 615

91' : 17578-3853
I 1012AB



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18052-3921 HDS 2549 (W CrA)

 
 
18h 05m 12.24s -39° 20' 32.3" P.A. 251.00 sep 0.3 mag 10.19,11.90 Sp C dist. 1538.46 pc (5018.46 l.y.)
 
 
Coord 2000 18052-3921 Discov num HDS2549 Comp Coord arcsec 2000 18 05 12.24 -39 20 32.3
Date first 1991 Date last 1991 Obs 1
Pa first 251 Pa last 251 P.A. Now (θ) 251°
Sep first 0.3 Sep last 0.265 Sep. Now (ρ) 0.265"
Mag pri 10.19 Mag sec 11.90 delta mag (ΔM) 1.71 Spectral class C (red carbon star)
Pri motion ra +002 Sec motion ra
Pri motion dec -027 Sec motion dec
Notes X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name W CrA Constellation Corona Austrina HIP 88584 Tycho2 7899-03712-1
Gaia DR2 4035874768261420416 HD 164889 CD CD-3912196 CP CP-39 7916
Distance 1538.46 Distance ly 5018.46
 
 
WDS 18052-3921 HDS 2549 (W CrA) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18052-3921 HDS2549 1991 1 251 0.3 10.19 11.90 R5 180512.24-392032.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 18052-3921 HDS 2549 (W CrA) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18052-3921 HDS 2549 (W CrA) : MEASURES
 
 
No records found.

 
 
WDS 18052-3921 (W CrA) : VIRTUAL EYEPIECE
 
 

18052-3921 HDS2549A mag 10.19 Sp C 18052-3921 HDS2549B sep 0.2 P.A. 246.00 mag 11.9 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18052-3921 (W CrA) : ALADIN DSS IMAGE @ 18h 05m 12.24s -39° 20' 32.3"
 
 
 
 
WDS 18052-3921 HDS 2549 (W CrA) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18052-3921 HDS2549 distance=1' 18060-3928 WG 223 distance=12' 18050-3904 RST2024 distance=17' 18022-3939 WG 221 distance=40' 18037-4008 TDS 901 distance=51' 18054-3823 HDS2550 distance=58' 18043-4019 WG 222 distance=60' 18000-3904 B 925 distance=64' 18093-4006 I 1351 distance=66' 18090-4009 WG 224 distance=66' 18089-4012 TDT 709 distance=67' 18010-4007 WG 220 distance=68' 18045-3810 VVV 50 distance=72' 17594-3955 TDT 614 distance=76' 18034-3807 TDS 899 distance=77' 18097-3824 TVB 300 distance=78' 18087-3814 SWR 237 distance=78' 17591-3850 I 1015 distance=78' 17599-4010 WFC 283 distance=79' 17599-3830 WFC 203 distance=80' 18051-4040 CPO 571 distance=80' 18122-3921 BU 759AB distance=81' 18122-3921 HJ 5028AC distance=81' 18122-3921 HJ 5028BC distance=81' 18044-4044 RST2023 distance=85' 18010-3811 B 2426 distance=85' 17580-3908 I 1013 distance=86' 17594-4014 TDT 615 distance=86' 17578-3853 I 1012AB distance=91' 17578-3853 SIN 104AC distance=91' 17578-3853 SIN 104AD distance=91' 17578-3853 SIN 104AE distance=91' 17578-3853 SIN 104AF distance=91' 17574-3926 WG 218 distance=91' 18130-3910 I 1018 distance=92' 18059-3749 FAL 60 distance=92' 18108-4026 HJ 5023 distance=92' 17584-4009 WG 219AB distance=93' 17584-4009 SIN 105AC distance=93' 18018-3757 JSP 936 distance=93' 18093-4041 BRT1025 distance=94' 18107-4032 HJ 5025 distance=96' 17573-3847 RST2008 distance=99' 18065-4100 RST2028 distance=100' 18114-3812 RSS 477 distance=101' 17572-3843 WFC 202 distance=101' 17568-3956 COO 222AB distance=103' 17568-3956 COO 222AC distance=103' 17567-3849 RST2006 distance=104' 18116-4035 WG 227 distance=106' 17570-4007 RST2007 distance=106' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 18052-3921 HDS2549 251 0.3 1
Show 18060-3928 WG 223 58 3.2 12
Show 18050-3904 RST2024 292 1.3 17
Show 18022-3939 WG 221 356 10.8 40
Show 18037-4008 TDS 901 262 0.9 51
Show 18054-3823 HDS2550 50 0.3 58
Show 18043-4019 WG 222 33 8.4 60
Show 18000-3904 B 925 268 5.0 64
Show 18093-4006 I 1351 215 0.7 66
Show 18090-4009 WG 224 352 6.1 66
Show 18089-4012 TDT 709 311 2.0 67
Show 18010-4007 WG 220 69 6.3 68
Show 18045-3810 VVV 50 38 8.8 72
Show 17594-3955 TDT 614 265 0.7 76
Show 18034-3807 TDS 899 66 1.3 77
Show 18097-3824 TVB 300 151 14.3 78
Show 18087-3814 SWR 237 93 18.5 78
Show 17591-3850 I 1015 201 2.0 78
Show 17599-4010 WFC 283 263 10.4 79
Show 17599-3830 WFC 203 243 8.1 80
Show 18051-4040 CPO 571 212 4.1 80
Show 18122-3921 BU 759 AB 124 2.0 81
Show 18122-3921 HJ 5028 AC 148 14.9 81
Show 18122-3921 HJ 5028 BC 151 13.0 81
Show 18044-4044 RST2023 65 2.4 85
Show 18010-3811 B 2426 321 8.1 85
Show 17580-3908 I 1013 133 1.2 86
Show 17594-4014 TDT 615 247 0.4 86
Show 17578-3853 I 1012 AB 116 3.1 91
Show 17578-3853 SIN 104 AC 240 17.8 91
Show 17578-3853 SIN 104 AD 301 33.9 91
Show 17578-3853 SIN 104 AE 76 37.6 91
Show 17578-3853 SIN 104 AF 73 47.4 91
Show 17574-3926 WG 218 131 10.4 91
Show 18130-3910 I 1018 336 1.1 92
Show 18059-3749 FAL 60 168 10.3 92
Show 18108-4026 HJ 5023 276 8.7 92
Show 17584-4009 WG 219 AB 213 9.5 93
Show 17584-4009 SIN 105 AC 102 24.4 93
Show 18018-3757 JSP 936 63 4.5 93
Show 18093-4041 BRT1025 56 4.7 94
Show 18107-4032 HJ 5025 99 45.3 96
Show 17573-3847 RST2008 167 0.9 99
Show 18065-4100 RST2028 23 6.1 100
Show 18114-3812 RSS 477 121 11.0 101
Show 17572-3843 WFC 202 9 6.2 101
Show 17568-3956 COO 222 AB 124 3.6 103
Show 17568-3956 COO 222 AC 27 73.3 103
Show 17567-3849 RST2006 182 0.6 104
Show 18116-4035 WG 227 187 6.2 106
Show 17570-4007 RST2007 296 1.4 106

 
 
WDS 18052-3921 : COMPONENTS
 
 
  A
B pa=246.0°
sep=0.21"
 
 
18052-3921 A
 
 
Componente originario normalizzato AB Name W CrA Coord arcsec 2000 180512.24-392032.3 Mag 10.19
Spectral class C (red carbon star) PmRA 2.00 PmDE -27.0 HIP 88584
Tycho2 7899-03712-1 HD 164889 CD CD-3912196 CP CP-39 7916
Tycho2
Tycho2 7899-03712-1 Pflag RAmdeg 271.30101675 DEmdeg -39.34238303
PmRA 5.3 PmDE -26.0 E RAmdeg 26 E DEmdeg 34
E pmRA 1.6 E pmDE 1.9 EpRAm 1981.26 EpDEm 1978.52
Num 6 Q RAmdeg 1.2 Q DEmdeg 0.6 Q pmRA 1.2
Q pmDE 0.6 BTmag 12.210 E BTmag 0.186 VTmag 10.125
E VTmag 0.041 Prox 999 TYC T HIP 88584
CCDM AB RAdeg 271.30099722 DEdeg -39.34232222 EpRA 1990 1.84
EpDE 1990 1.82 E RAdeg 36.1 E DEdeg 50.8 Posflg P
Corr -0.1
Hipparcos
Catalog H HIP 88584 Proxy H RAhms 18 05 12.24
DEdms -39 20 32.3 Vmag 9.82 VarFlag 2 R Vmag H
RAdeg 271.301 DEdeg -39.3423 AstroRef * Plx 1.49
CCDM 18052-3921 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 251 Rho 0.265 HD 164889 BD
CD CD-3912196 CP CP-39 7916 Dm number -3912196 VIred 1.17
SpType R5 R SpType Coord arcsec 2000 180512.24-392032.3
Hipparcos 2
HIP 88584 Sn 55 So 3 Nc 2
RArad 4.735095606 DErad -0.686652803 Plx 0.65 PmRA 5.3
PmDE -24.43 E RArad 1.58 E DErad 1.04 E Plx 1.69
E pmRA 2.12 E pmDE 1.1 Hpmag 9.9886 E Hpmag 0.0158
SHp 0.1 VA 2 BV 0 E BV 0
VI 0
CCDM
Ccdm 18052-3921 RComp Comp A Note1
Note2 Discov num DRAs 0.25 DDEs 27.5
R dRAs 82 Year Theta Rho
Obs 2 Vmag 10.2 Sp R. PmNote *
PmRA 2 PmDE -27 Dm number -3912196 Cat1 CD
Name2 Cat2 HD 164889 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 88584
 
 
18052-3921 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180512.22-392032.4 Mag 11.9 Calc delta mag 1.71
Calc coord yes
CCDM
Ccdm 18052-3921 RComp Comp B Note1
Note2 Discov num HDS DRAs 0.23 DDEs 27.4
R dRAs 82 Year 1991 Theta 251 Rho 0.3
Obs 1 Vmag 11.9 Sp PmNote *
PmRA 2 PmDE -27 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 88584